Table 5.

First Infection Hospitalization Characteristics by Neighborhood Socioeconomic Status Score

Participant Characteristic	nSES Quartile				P Valuea
	Q1 [Lowest] nSES Score (–11.79 to –3.90) (n = 605)	Q2 nSES Score (–3.89 to –0.93) (n = 630)	Q3 nSES Score (–0.92 to 3.08) (n = 585)	Q4 [Highest] nSES Score (3.09–28.95) (n = 505)
Primary infection type, %					.65
Respiratory	41.0	40.2	39.3	40.4
Urinary/kidney	18.0	19.8	19.2	16.8
Abdominal	16.2	17.9	20.2	20.0
Skin/soft tissue	13.7	11.9	12.8	13.5
Sepsis	5.3	4.9	2.7	4.8
Other	5.8	5.2	5.8	4.6
≥2 SIRSb criteria, %	54.1	54.1	53.7	49.7	.41
≥2 SOFAc points, %	38.7	37.8	35.6	34.1	.37
≥2 qSOFAd points, %	12.6	11.4	9.9	12.3	.49
SOFA score category, %					.54
0	36.2	37.1	40.0	40.4
1	25.1	25.1	24.4	25.5
2	14.6	17.5	15.2	13.3
3–4	15.4	13.8	14.2	15.1
5	8.8	6.5	6.2	5.7
Admitted length of stay e, d, median (25th–75th percentile)	5 (3–8)	4 (3–7)	5 (3–7)	4 (3–7)	.03
Admitted to ICU vs floore, %	11.0	11.2	6.8	10.3	.08
In-hospital death, %	7.4	6.5	5.0	5.5	.30
Discharged to nursing home, %	9.3	8.7	6.7	9.1	.35

Total of 2325 participants hospitalized with a first infection event.

Abbreviations: ICU, intensive care unit; nSES, neighborhood socioeconomic status; qSOFA, “quick” sepsis-related organ failure assessment; SIRS, systemic inflammatory response syndrome; SOFA, sepsis-related organ failure assessment.

^a P values from Kruskal-Wallis tests of equal distribution for continuous variables (length of stay) and Pearson χ² tests of association for categorical variables.

^bSepsis-SIRS defined as infection event meeting ≥2 SIRS criteria.

^cSepsis-SOFA defined as infection event with ≥2 SOFA points.

^dSepsis-qSOFA defined as infection event meeting ≥2 qSOFA criteria.

^eIncludes only participants admitted as an inpatient with inpatient records available.